Water-purifying apparatus.



H. REISERT.

WATER PUBIFYING APPARATUS.

I APPLIOATION FILED JUNE 8, 1909.

Patented Oct. 26, 1909.

2 SHEETSSHEET 1.

Hmeooeo H. REISERT.

WATER PURIFYING APPARATUS.

APPLICATION FILED JUNE 8, 1909.

Patented Oct. 26, 1909.

2 SHEETS-SHEET 2.

' vided'within the chamber w'hich the air and water are Hans, nnxsniifor66mins; ennmanx.

WATER-PURIFYING APPARATUS.

Specification of lletters Patent.

Patented Oct. 26, 1909.

Application filed June 8, 1909. Serial No. 500,976.

To all whom it may concern:

Be it known that I, I-IANs REIsER'r, a citizen of the Empire of Germany,and a resi dent of Cologne, Germany, have invented certain new anduseful Improvements in Water-Purifying Apparatus, of which the followingis a specification.

Some of the objects of my invention, are, first, to provide awater-purifying apparatus wherein the ferruginous matter and anal-,ogous material carried by the water will be removed by oxidation;second, to provide a water -purifying apparatus in which the oxidationis accomplished by bringing the air under pressure into contact with thewater in a finely divided state; and, third to provide means whereby thepressure and water level are regulated.

. With these and other objects in view, my invention consists in thenovel parts, improvements, and combinations more particularly set forthin the claims.

Referring to the accompanyin drawings, which are attached to the spec'cation and form a part thereof, Figures 1 and 2 are vertical sections oftwo forms of my improved water-purifying apparatus.

As shown in Fi 1, the apparatus consists of a closed tank orming amixing chamber 1, and provided with a conical-shaped bottom 30. Thelower portion 4 of this mixing chamber is adapted to hold the waterwhile the upper part 5 contains compressed air.

- Through the apex of the bottom 30, air is 1n.-

troduced into the mixing chamber by means of the pipe 6-provided with avalve 7 for regulating the flow of this pipe 6 I afiix a rotary valve ornozzle 8, whereby the air, as it issues therefrom, will pass up throughthe water in a circular or rotary motion. Water is su plied to thechamber 1 by the pipe 9. cans are pro- 1 whereby the water as it issuesfrom the pipe 9 will be converted into a thinly or finely divided stateas it falls into the chamber. In the referred form, said means consistof a plura ity of open pans 10, 11 and 12, placed one above the other.The pipe 9 is secured to the bottom of the pan over. the edge ofthis'pan it will fall in a thin sheet upon the an 11, thence in a thinsheet to pan 12, an thence in like-manner into the chamber below. Thepressure under introduced into in the lower part within the chamber air.To the end of 10, so that as the water flows I the mixing chamber may beso regulated that the water maybe maintained at any desired level. Tokeep the water at such level, I provide a regulator 13, which consistsof a cylinder connected to the mixing chamber 1 by two passages 14 and15, the passage 14 communicating with the compressed air in the upperportion 5 of the chamber 1, while the passage 15 communicates with thewater 4. Within the regulator 13 is a float valve 16 and adapted, as itrises and falls, to close and open the valve 17 in the top of theregulator 12. I further provide a water-level gage 18 connected to themixing chamber 1 to indicate the level of the water therein. When thepressure of the air in the chamber 5 increases thus lower-. ing thewater level, the float 16 falls and allows the'air to escape into theatmosphere through valve 17, thus lowering the pressure 5. The waterlevel then rises. When the water level rises sufliciently the valve 17is closed and the predetermined amount of air pressure keeps t e waterlevel at a fixed height. Sludge is removed from the bottom of the mixingchamber by a pipe 19 with valve 20.

In the embodiment of the invention illustrated in Fig. 1 anothersettling and filtering tank is provided connected with the mixingchamber by pipe 21 in which valve 22 is located. The settling tank 23has a conical bottom 24 from which the sediment may be removed by pipe25 and valve 26.

- Two filtering tanks are preferably used, a coarse filter 27 on ascreen 28 and a fine filter 29 on a screen 30. The water passes upwardlythrough filter 27 by means of pipe 31 to the fine filter 29 and thendownwardly through the latter filter into the pure water reservoir 32from which it discharges by outlet pipe 33 having valve 34. Suitablemeans are provided for washing out the fine filter. As illustrated Imake use of a pipe 35 with valve 36' leading from the air chamber 5 tothe pure water reservoir 32. When the valve 36' is opened, the aircarries with it some ofthe water in reservoir 32 upwardly through thefine filter and discharges the impurities through discharge pipe 37having a valve The air blast also stirs up the filter particles,thoroughly mixing them with the water in the tank containing the filterbed, this cleansing them. A baflle plate 39 prevents thefilteringmaterial from reaching the mouth of the discharge pipe.' Itwill be observed that all three pipes 19, 25 and 37 discharge into adrain 39.

Referring now to the embodimentof the invention illustrated in Fig. 2,all the parts are contained within a single structure which economizesfloor space. The air chamber 40 receives compressed air from pipe 41,rotary valve 42, the air ascending through a mixing tank 43 with conicalbottom 44. Raw water is supplied to the mixing chamber by pipe 48, thewater flowing over pans 45, 46, 47 to secure a complete interactionbetween air andwater. A water level indicator '49 indicates the level ofthe water and a regulator 50 having a float 51 which operates air valve52 regulates the water level. The regulator has passages 53, 54communicating with the air chamber 40 and mixing chamber 43respectively. A pipe 55 with valve 56 supplies the treated water tothe'lower filtering tank 57. The water from the mixing chamber 43 passesover the coarse filter 58, then into compartment 59 and through finefilter 60 into the pure water compartment 61 from which it discharges bymeans of pipe 62. The slud e is siphoned from the mixing chamber 43 %ypipe 63 with valve 64. The fine filter is cleaned by purified water partof which is forced upwardly through the fine filter by compressed airsupplied by pipe 65 having a valve 66 which pipe leads from theairchamber 40 into the pure water compartment 61. Suitable means areprovided to indicate the condition of the filters and to determine whenthe. washout should take place. I provide pressure gages 67 and 68 forthis purpose. The pressure gage 67 by pipe 69 communicates with the I arside ofthe filter 60 and the pressure gage 68by pipe 70 communicateswith the near side ofthe filter 58. When the filter clogs, it produces agreater-resistance to the flow of the water through it, thus giving areater back pressure which is indicated y the manometer 68 givin ahigher indication. If the filters becom clogged theman'ometer 67 shows adecreased pressure on the far side of the filters.

The operation of the apparatus will be clear. The raw water isintimately mingled with atmospheric air which frees 'it from iron andthe water level and consequently the conditions of working as topressure, height of waterfall and so forth, are kept constant and at thesame time, the spraying of the water through the air occurs in a closed,high pressure system.

My invention in its broader aspects is not limited to the particularconstructions and relative arrangements of the parts hereinshown anddescribed nor to any particular form of apparatus by which the inventionmay be carried into eifect, as many changes may be made in theconstruction and relative arrangement of theparts as required to adaptthe apparatus to the circumstances of the particular application of theinvention or to meet the. personal view of the engineer employed tocarry the'invention into eflfect of the invention and withoutsacrificing its chief advantages.

Having thus described my invention, What I claim, and desire to secureby Letters Patent, is I 1. In a water-purifying apparatus, thecombination of a water reservoir, means for upplying water thereto,means for oxidizing the ferruginous materials in the water, underpressure, and an automatic regulator for decreasing the pressure when 7the water reaches a certain level.

2. In a water-purifying apparatus, the combination of a water reservoir,means for supplying water thereto, means for converting the water into afinely-divided state, means for oxidizing the ferruginous materials inthe water under pressure, and an automatic regulator for decreasing thepressure when the water reaches a pertain level.

3. In a water-purifying apparatus, the combination of a mixing chamberhaving a water-supply inlet and an air-inlet for supplying air theretounder pressure, means for converting the water into a finely-dividedstate, a settling-chamber connected with said mixing chamber and havingan outlet therefrom, and an automatic regulator for de creasing thepressure when the water inthe mixing chamber reaches a certain level.

4. In a water-purifying apparatus, the combination of a mixing chamberhaving a water-supply inlet andan air-inlet for supplying air theretounder pressure, means for converting the water into a finely-dividedstate, a settling-chamber connected with said mixing chamber and havingan outlet therefrom,an automatic regulator for decreasing the pressurewhen the water in the mixing chamber reaches a certain level and a gagefor indicating the water level in said mixing chamber.

5. In a water-purifying apparatus, the combination of a mixing chamberhaving a water-supply inlet and an air-inlet for supplying air under'pressure thereto, means for converting the water as it comes from the-water inlet, into a thinly-divided state, a plurality of communicatingfiltering chambers, one of which is connected with said mixing chamber,asettling-chamber for receiving the purified water from one of the anautomatic regulator for decreasing the pressure when the water in themixing chamber has reached a certain level.

=6. In a water-purifying apparatus, the combination of a mixing chamber,a water supplying inlet, an air-inlet'for supplying without departingfrom the mainv principles filtering chambers, and having an outlet, andI air under pressure thereto, one or more pans arranged in the aircompartmentof the mixing chamber and adapted to receive the water afterit enters the chamber so as to convert it into a finely-divided state, asettling chamber connected with the mixing chamber, and an automaticregulator for decreasing the pressure when the water in ihe rlnixingchamber reaches a predetermined eve.

7 In a water-purifying apparatus, the combination of a mixing chamberhaving an air compartment and a water compartment, a Water supplyinginlet, an air inlet for supplying air thereto under pressure, one ormore pans for receiving the water as it enters the chamber forconverting the water into a finely divided state, an automatic regulatorincluding a pair or passages, one communicating with the air compartmentand the other with the water compartment and a valve forming part ofsaid regulator for decreasing the pressure when the water in the mixingchamber reaches a certain level.

8. In a water-purifying a paratus, the combination of a mixing cham erhaving an air compartment and a water compartment, a water supplyinginlet, an air inlet for supplying air undenpressure, one or more pansfor receiving the water as it enters the chamber for converting thewater into a 'finely divided state, an automatic regulator including apair of passages, one communicating with the air compartment and theother vwith the water compartment, a float in the regulator, a valveactuated by said float and controlling the passage to the atmosphere fordecreasing the pressure whenthe water in the mixing chamber reaches acertain level.

In testimony whereof, I have signed my name to this specification, inthe presence of two subscribing witnesses.

HANS REISERT.

, Witnesses;

LOUIS VANDOR, ,KETCH. MERZLACH.

